Breakdown of Waste: Illustrating the year 5 standard
The following examples of student work illustrate achievement at the mathematics standard for year 5.
The Task
Breakdown of Waste Timeline
- Select some food and packaging items from the table that the class created after last week’s research.
Time that items found in school lunchboxes take to break downFoodApple core: 2 monthsBanana skin: 4 weeksOrange skin: 5 weeksSandwich crust: 2 weeksLeftover noodles: 6 weeksBread: 12 daysPackagingPlastic bag: 10 yearsPaper bag: 8 weeksPlastic wrap: 25 yearsGreaseproof paper: 8 weeksPlastic water bottle: 450 years
- Draw a timeline. Place your selected items on the timeline to show how long each item takes to break down.
- Choose one food and one packaging item from your timeline and calculate the difference between the times that they take to break down.
New Zealand Curriculum: Level 3 | National Standards: By the end of year 5 |
In solving problems and modelling situations, students will:
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Number and Algebra
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Number and Algebra
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Geometry and Measurement
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PDF of this task and Illustrations of the year 5, 6 and 7 standards (1.35MB)